Recommendations — what works, at what cost, for which voters

The findings on this site each name part of the gap. This page lines up the fixes against each part. Every row says the same thing: this intervention, for this group of voters, has this effect range, at this cost per voter, with this quality of evidence — and here is what it cannot do. No advocacy verbs. No single-point claims dressed up as estimates. No invented numbers for groups we don't have evidence for.

How to read this page

The findings on the site each name part of the problem. This page lines up the fixes.

Across 13 federal elections (2000-2024), about half of registered young people aged 18-29 who didn't vote say it was time and logistics. About a quarter say engagement. About 9% say access. So the biggest returns come from policy reform and administrative changes that help voters finish the ballot — not from generic get-out-the-vote campaigns.

Group-level evidence caveat

The intervention catalog records effect ranges at the population level, with a documented youth multiplier where the primary source publishes one. It does not contain race × gender × age group-specific effect sizes for most interventions. Where a youth multiplier exists, we use it; where it does not, we report the general-population range and flag "general youth 18-29 — group-level effect not separately published." This is a genuine limitation of the evidence base, not a gap in this analysis. Finding 5 pairs this catalog with Current Population Survey (CPS) group-level method preference data to narrow the applicable group; the catalog alone cannot.


Recommendations matrix

Policy reform (state-level; multi-cycle compounding)

InterventionGroup targetingBarrierEffect (pp)Per marginal voterEvidenceBest-fit funders
Same-day registrationGeneral youth 18-29 (multiplier 1.2×)access + logistical3.0-5.0$0-$5 amortizedstrongBrennan, Pew, Democracy Fund, Hewlett, SoS offices
Automatic voter registrationGeneral youth (1.1×)access2.0-4.0$0-$5moderateBrennan, Democracy Fund, Election Assistance Commission (EAC) Help America Vote Act (HAVA), SoS
Pre-registration at 16-17General youth (1.5×)access + habit formation1.0-3.0$0-$5moderateCIRCLE, Knight, Democracy Fund, SoS, AmeriCorps
No-excuse absentee votingGeneral youth (1.1×)logistical2.0-4.0$0-$5strongBrennan, Pew, SoS, EAC HAVA
Universal vote-by-mailLow-propensity generally (1.2×)logistical2.0-5.0$0-$5strongDemocracy Fund, Pew, CO/CA SoS, Knight

Caveat: these are statute-level changes; per-vote cost amortizes once passed. Initial passage campaign costs are borne separately and not reflected above. Pre-registration carries a multi-cycle lag; it does not deliver near-term gap closure.

Administrative improvement (election-office-level)

InterventionGroup targetingBarrierEffect (pp)Per marginal voterEvidenceBest-fit funders
Online voter registrationGeneral youth (1.3×)access0.5-2.0$5-$15moderateEAC HAVA, Pew, SoS offices
Student-ID acceptance at pollsStudents 18-24 (2.5×)access0.5-1.5moderateCampaign Legal, CIRCLE, SoS
Polling-place siting optimizationGeneral youth (1.4×)logistical0.3-1.0moderateEAC HAVA, Pew, SoS
Ballot tracking portalGeneral youth (1.1×)logistical + trust0.2-0.7weak-moderateEAC HAVA, Pew, SoS

Caveat: effects are marginal where baseline administration is already strong. Value is often in confidence and equity-of-access, not net turnout.

Programmatic GOTV (campaign-cycle; per-contact costs)

InterventionGroup targetingBarrierEffect (pp)Per contactPer marginal voterEvidenceBest-fit funders
Door-to-door canvassingGeneral youth (1.8× — highest youth multiplier)engagement + logistical0.5-2.0$2-$10$20-$50strongAlliance for Youth Action, State Voices Action (c4), Arnold (eval)
Peer-to-peer SMSGeneral youth (2.0×)engagement0.5-1.5$0.05-$0.20$40-$100strongAlliance for Youth Action, Knight (tools), CIRCLE (eval)
Relational organizingGeneral youth (2.2× — highest overall)engagement1.0-3.0$0.50-$2$20-$80strongSkoll, Alliance for Youth Action, State Voices Action (c4)
Professional phone bankingGeneral youth (1.2×)engagement0.3-1.0$1-$3$100-$500strongArnold (eval), State Voices Action (c4)
Direct mailGeneral youth (1.1×)engagement0.2-1.0$0.50-$1.50$100-$500strongState Voices Action, Way to Win (c4)
Targeted digital adsGeneral youth (1.5×)engagement0.3-1.5$0.01-$0.10$30-$300moderateKnight, Democracy Fund (tools), Arnold (eval)

Caveat: effects depend on genuine peer relationship (SMS, relational); do not substitute broadcast for peer-sent. 501(c)(3) partners must scope door-to-door and phone banking as civic education, not electioneering. Field capacity is finite; scaling past local density produces diminishing returns.

What "relational organizing" and "peer-to-peer SMS" mean. They sit at the top of the table because both work through a real relationship, not just a channel.
Relational organizing
Reaching voters through people they already know. A supporter contacts their own circle — family, neighbors, church, teammates, the group chat — and personally encourages them to register and vote, usually with an app that flags which of their contacts are unregistered or low-turnout. The existing relationship does the work, which is why it carries the highest multiplier in the table.
Peer-to-peer SMS
One-to-one text messaging to voters at scale, with a person sending each message by hand rather than an automated blast — so recipients can reply and have a real back-and-forth. The human sender is also what keeps it within the rules on automated texting to mobile phones (the Telephone Consumer Protection Act, or TCPA).
The "What not to fund" table below lists broadcast SMS without a peer sender separately: the same channel stripped of the relationship, where the effect drops to near zero. That contrast is how we know the peer — not the text — is the active ingredient.

Civic infrastructure (multi-cycle, long-lag)

InterventionGroup targetingBarrierEffect (pp)Per marginal voterEvidenceBest-fit funders
Civics education reformGeneral youth (3.0×), 5-15 yr lagengagement (long-term)1.0-3.0weak-moderateCIRCLE, Knight, Hewlett, AmeriCorps, Russell Sage
Service programs (AmeriCorps etc.)Program participants (2.5×)engagement (identity)1.0-2.0moderateAmeriCorps, Skoll, Russell Sage

Caveat: documented on program alumni; cannot generalize to non-participating youth. Long lag precludes attribution to any near-term cycle.

Institutional reform (structural; multi-cycle compounding)

InterventionGroup targetingBarrierEffect (pp)Per marginal voterEvidenceBest-fit funders
Independent redistricting commissionGeneral youth (1.4× via efficacy)structural2.0-4.0$1-$10 amortizedmoderateBrennan, Campaign Legal, Rockefeller Brothers, Democracy Fund
Ranked-choice votingGeneral youth (1.3×)structural0.5-2.0weak-moderateDemocracy Fund, Arnold, Rockefeller Brothers

Caveat: governance/competitiveness framing only; partisan consequences out of scope. RCV general-election effect smaller than primary-election effect.


What not to fund

InterventionEffect (pp)EvidenceWhy it fails
Celebrity "go vote" campaigns0.0-0.2very weakSalience does not convert to behavior in disengaged youth populations (Gerber & Green 2019 synthesis).
Untargeted digital ads0.0-0.3weakCost per marginal voter in the thousands once measured rigorously (Broockman & Kalla 2020).
Broadcast SMS without peer0.0-0.3weakEffect disappears when peer sender is removed — mechanism is relationship, not channel (Malhotra et al. 2011).
"Rock-the-vote" brand awareness0.0-0.3very weakIndistinguishable from noise in meta-analytic review.

If these are funded for other reasons (brand-building, organizational sustainability, fundraising), that rationale should be stated explicitly rather than claimed as voter mobilization.


Funder-fit matrix

22 funders × 6 intervention categories. C = category fit; P = partial fit; blank = out of category. NP column: Y = fully nonpartisan 501(c)(3); L = nonpartisan with positions; M = mixed structure; N = 501(c)(4) / electoral vehicle.

FunderNPPolicyAdminGOTVCivic infraInstitutionalResearch
Knight FoundationYPCPC
HewlettYCPPC
Democracy FundYCPCPC
Arnold VenturesYCPPPC
SkollYPCP
Rockefeller BrothersYCPCP
Brennan CenterYCCPCC
Pew Charitable TrustsYCCPC
Campaign Legal CenterYCC
Common CauseLPPC
State Voices ActionNC
Way to WinNC
Arabella networkMPPPPPP
AmeriCorps (federal)YC
EAC HAVA GrantsYPC
California SoSYCCP
Colorado Department of StateYCC
NSF Political ScienceYC
Russell SageYPPC
CIRCLE at TuftsYPCC
Alliance for Youth ActionMCP

Seventeen of twenty-two are 501(c)(3)-compatible. State Voices Action, Way to Win, Arabella network, Alliance for Youth Action, and some modes of Common Cause are 501(c)(4) or mixed — they appear in the matrix because they fund the correct category, not because they are partnership candidates for a 501(c)(3) deliverable. Government entities (AmeriCorps, EAC, California SoS, Colorado SoS, NSF) require procurement-compatible scoping with distinct disclosure requirements.


How to read this page alongside the findings

If a row in this matrix does not trace back to a group-level finding via one of those pages, treat it as general-population evidence and flag it in the grant narrative. The trust-but-verify rule applies here too.


Methodology. Effect ranges reflect the low-high bounds published in the source meta-analyses; treat each range as approximately a 95% CI unless the source specifies otherwise. Cost ranges reflect both effect-size uncertainty and per-contact variance. Blank cells mean the catalog does not report that quantity. Primary source: Gerber & Green, Get Out The Vote, 4th ed. (2019), supplemented by Brennan Center cost-benefit analyses, Results for America evidence briefs, and peer-reviewed individual studies cited in data/external/evidence_roi/intervention_effect_size_catalog.csv. Funder landscape from Candid.org, foundation websites, and ProPublica Nonprofit Explorer; full list at data/external/evidence_roi/funder_landscape.csv. Every row traces to a named row in those two files. Full provenance: methodology page.